Improvement in valves for radiators



Wx H, MEREDTH. Valve for Radiators.

No. 207 540 Paened Augn 2?, H3275.

Tfr)

' pipe, and to provide, when the radiator is isoing with the radiator. llhe pipe l5 leads from TENT FFICE.

Speeilealion Vorming parl ot' lmttvrs latrnt No. 2

07,5 l0, dated August 27', ISTS; application Iiled .lul'v it, IHTS. i

To all whom -1' t may concern lie n known that l, \Vu.i'.1 .f\u ll. )lininnrrn, oi' the city, county, and State ot' New York, have invented certain Improvements iu Valves` t'or Radiators, o1' which the l'ollowing is a speeilieation:

'lhis invention relates to valves adapted mostparticularly to steam-radiators,bntwhich are. also adapted to thosil in which hot water or air is used.-

lhe principal object ot' the invention is to provide a valve that will open or close the inlet and return pipes simultaneously and by one operation, so as to insure a proper circulation in the radiator or itstotal isolationt'rom the generator'.

'Ihe invention consists, essentially, in the application to a radiator, connecting through inlet and return pipes with a generator, ot' a valve arranged to open or close simultaneously and at onevoperation boththe inlet and return lated, continuous circulation through the genA erator, pipes, and valve.

lt also consists in various combinations ot' parts, all ot' which will be more t'nlly herein vafter set i'orth.

In the drawings, AFigui-el is avertieal crossseetion of the valve and its easing, taken inl the plane of the line a: a', Fig. L. Fig. 2 is a mid-sectional view of same, taken at right angles to Fig. 1. Fig. 3 is a general view, on a smaller scale, showing the application ol' my improved valve to a radiator.

A represents a valve casing or chamber, the bore ot which isslightly tapered, as usual. This casing has four ports, u, b o d, opening :respectively into pipes B 13' C G". 'lhe two toi-mer connect the generator, which may be an ordinary steam-boiler, with the valve-casing, andlthc two latter connect the valve-eas the steamfspaee in the generator to the valve, and is called the supply-pipe. The pipe B' leads from the valve to a point below the water-linc in the boiler, and is called the returnpipe. The pipe C leads from the valve to the radiator, and is called the Linlet-pipe, and the pipe C leads from the radiator `to the valve, and is called the outlet-pipe. lta coil is used in the radiator, the same should be interposed between the pipes U C.

No generator is shown in thc drawings, as

a common steam-boiler may be used for the purpose. Nor do I deem it necessary to show a complete radiator, as any form of radiator ma)Y be provided with 4my valve or cut-off.

The reference-letters B B' G C serve to designate, respectively, theinlct and return pipes complete, although only fragments of such pipes are shown in the drawings.

l) is a conical plug-valve, ground to fit the bore ofthe casing, and provided with a stem, fll. This valve is cut awa-y at c c, on opposite sides, to connect thc ports in the casing, the communication between any two ports being dependent,upon the position of the valves. \\'hcn turned so that the bridge stands as represented in full lines in Fig. 1, the steam from the generator passes through the pipe B, ports a c, and pipe C to the radiator, while return communication is established, through the pipe C', ports :l b, and pipe ll', between the other end et' the radiator-coil and thewater in thel generator. 'lhns a complete equilibriumaml perteet circulation is set up throughout the radiator and generator simultaneously.

\\'hen the valve l) is given a turn in either direction, the partition or bridge assumes the position indicated by dotted lines in Fig.` 1, and the radiator is completely isolated from the generator and the heat is cut; otl'. At the same time that the above isolation is effected communica-tion is established, through the valve, between the pipes 11 B. 'This is a very importantfeature, as it insures circulation and aperfect equilibrium, precisely the same as when tho radiator is connected. This prevents condensation and freezing inl thc pipes l B', which is liable to occur when they are eut. oit' from the radiator and from each other. It also adapts them to serve as moderators ofthe temperature when it is not cold enough to turn the steam onto the radiator.

It will be observed that, an incidental oi' the operation, communication islestablished between the pipes C C when the radiator is ent. ot' by turning the valve.

F is a stutling-box, preferably made of a scparate piece from the easing A, but not necessarily so. (i is a tubular piece, which fits into the box l" and rests npon the valve 1). ll is a screw-cap or gland, and I is the packingintex-posed between the gland and the piece G. 1t will be seen that when the cap .l is screwed down the valve l) is pressed iirmly to its sont and held there elastically, or by elastic pressA nre i'ronl the snperincunlhent packing. `When the valve becomes worn it is kept upto its seat hy screwing: down the cap or gland.

lhe valve might be operated by ail-ordinary lever or handle; bnt I prefer the arrangement shown, which I will now describe.

J is a cross-treadle, scoured to the stem E in some suitable manner., and arranged to be operated by the foot. Vv'hen one end is depressed the valve is opened; when the 'other is depressed the valvir is closed. 'lhistreadle may be provided willi ronghened pads at the ends to receive the lool, and it should have stops to prevent toc nach movement. Fig. 3 shows a cross-trezulle so arranged as to strike the iloor when pressed far enough to aetnaie the valve. 1n lien ol" this, the upper end might be arranged to catch under the lower vedge oi' the radiatmhase, or under a stop on the same. lThis treadle enables the valve to he operated without stooping' downor burning'theiingers, as where the ordina-r)Y valves are used.

I claim--` l. The combination, with a radiator having; a supply o1' inietpipe and a return-pipe, ot' a vnl ve or cock arranged to cnt ott' at 'once all communication between the radiator and the som-ce of heat, and to open, simultaneonsl)v with the. isolation. of the radiator, communication through the generator, pipes, and valvev` snbstantiallr as set forth.

2. The eomhination of the pipes il 'l' C C', the casing A, provided with ports a, b e d, the valve l), cnt away at c e, and a radiator adapted to connect with the valve through the pipes l C', when all are arranged. snbstantiaily as and for the purposes set forth.,

3. lihe combination of the eoned or plug valve 1), arranged to be oseillated, V with a eross-treadle, J, fixed to said valve, arranged to operate the valve b v being depressed at the ends, and arranged also with reference to the lioor or the hase ot' the radiator so that its stroke will he properly limited, substantially as set forth.

in witness whereof 1 have hereunto signed my naine in the prese-nec of two subscribing witnesses.

NILLAM Il. Mllillhl'lll.

W i tnesscs:

Aa'rnoa (i. FnAsnn, 'llenar UoNNn'r'r. 

